Sponsored photos by

Hering illusion Vector graphic optical illusion. The red lines are parallel but they appear to be bulging outwards
Fiber optic cable transmitting data on black background 3d
Periscope sectional diagram. The principle of operation of the periscope. Science education vector illustration
Data transfer by optical fibre information technology.
Senior female doctor analyzing optical coherence tomography (oct) scans on a computer, focusing on detailed retina images for accurate ophthalmology diagnosis and treatment
Hermann grid. Vector graphic optical illusion. All the small circles are white, but as the eye moves around, the circles on the periphery appear black

Free stock photosoptical (412)